ISPY vs. SPY
ISPY (ProShares S&P 500 High Income ETF) and SPY (State Street SPDR S&P 500 ETF) are both exchange-traded funds - ISPY is a Derivative Income fund tracking the S&P 500 Daily Covered Call Index, while SPY is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past year, ISPY returned 23.56% vs 26.65% for SPY. With a 0.97 correlation, they move nearly in lockstep. ISPY charges 0.55%/yr vs 0.09%/yr for SPY.
Performance
ISPY vs. SPY - Performance Comparison
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Returns By Period
In the year-to-date period, ISPY achieves a 8.16% return, which is significantly lower than SPY's 9.74% return.
ISPY
- 1D
- -0.29%
- 1M
- 0.06%
- YTD
- 8.16%
- 6M
- 7.64%
- 1Y
- 23.56%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
SPY
- 1D
- -0.31%
- 1M
- 0.09%
- YTD
- 9.74%
- 6M
- 9.27%
- 1Y
- 26.65%
- 3Y*
- 21.27%
- 5Y*
- 13.51%
- 10Y*
- 15.70%
ISPY vs. SPY - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | |
|---|---|---|---|---|
ISPY ProShares S&P 500 High Income ETF | 8.16% | 13.15% | 21.31% | 0.35% |
SPY State Street SPDR S&P 500 ETF | 9.74% | 17.72% | 24.89% | 0.10% |
Correlation
The correlation between ISPY and SPY is 0.96 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.96 |
Correlation (All Time) Calculated using the full available price history since Dec 20, 2023 | 0.97 |
The correlation between ISPY and SPY has been stable across timeframes, ranging from 0.96 to 0.97 - a consistent structural relationship.
ISPY vs. SPY - Sectors Allocation Comparison
Sectors
ISPY
SPY
Technology
Financial Services
Communication Services
Consumer Cyclical
Healthcare
Industrials
Consumer Defensive
Energy
Utilities
Real Estate
Basic Materials
Technology
ISPY
SPY
Financial Services
ISPY
SPY
Communication Services
ISPY
SPY
Consumer Cyclical
ISPY
SPY
Healthcare
ISPY
SPY
Industrials
ISPY
SPY
Consumer Defensive
ISPY
SPY
Energy
ISPY
SPY
Utilities
ISPY
SPY
Real Estate
ISPY
SPY
Basic Materials
ISPY
SPY
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Return for Risk
ISPY vs. SPY — Risk / Return Rank
ISPY
SPY
ISPY vs. SPY - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for ProShares S&P 500 High Income ETF (ISPY) and State Street SPDR S&P 500 ETF (SPY). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| ISPY | SPY | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.18 | ||
| Sortino ratioReturn per unit of downside risk | -0.33 | ||
| Omega ratioGain probability vs. loss probability | 1.35 | 1.39 | -0.04 |
| Calmar ratioReturn relative to maximum drawdown | 2.81 | 3.01 | -0.20 |
| Martin ratioReturn relative to average drawdown | 11.59 | 13.54 | -1.95 |
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Drawdowns
ISPY vs. SPY - Drawdown Comparison
The maximum ISPY drawdown since its inception was -16.88%, smaller than the maximum SPY drawdown of -55.19%. Use the drawdown chart below to compare losses from any high point for ISPY and SPY.
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Drawdown Indicators
| ISPY | SPY | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -16.88% | -55.19% | +38.31% |
Max Drawdown (1Y)Largest decline over 1 year | -8.43% | -8.88% | +0.45% |
Max Drawdown (3Y)Largest decline over 3 years | — | -18.76% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -24.50% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -33.72% | — |
Current DrawdownCurrent decline from peak | -2.02% | -1.75% | -0.27% |
Average DrawdownAverage peak-to-trough decline | -2.09% | -9.04% | +6.95% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.04% | 1.97% | +0.07% |
Volatility
ISPY vs. SPY - Volatility Comparison
ProShares S&P 500 High Income ETF (ISPY) and State Street SPDR S&P 500 ETF (SPY) have volatilities of 4.61% and 4.64%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| ISPY | SPY | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.61% | 4.64% | -0.03% |
Volatility (6M)Calculated over the trailing 6-month period | 9.44% | 9.75% | -0.31% |
Volatility (1Y)Calculated over the trailing 1-year period | 12.02% | 12.43% | -0.41% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 13.71% | 17.14% | -3.43% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 13.71% | 17.99% | -4.28% |
ISPY vs. SPY - Expense Ratio Comparison
ISPY has a 0.55% expense ratio, which is higher than SPY's 0.09% expense ratio.
Dividends
ISPY vs. SPY - Dividend Comparison
ISPY's dividend yield for the trailing twelve months is around 4.47%, more than SPY's 1.01% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ISPY ProShares S&P 500 High Income ETF | 4.47% | 8.56% | 9.84% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
SPY State Street SPDR S&P 500 ETF | 1.01% | 1.07% | 1.21% | 1.40% | 1.65% | 1.20% | 1.52% | 1.75% | 2.04% | 1.80% | 2.03% | 2.06% |
Frequently Asked Questions
With a correlation of 0.96, ISPY and SPY move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
SPY has higher volatility (4.64%) compared to ISPY (4.61%). In terms of maximum drawdown, ISPY dropped -16.88% vs SPY's -55.19%.
On 1-year performance, SPY leads with 26.65% vs 23.56% for ISPY. On fees, SPY is cheaper at 0.09% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, SPY has performed better with a 26.65% return vs 23.56%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
SPY is cheaper with a 0.09% expense ratio, compared with 0.55% for ISPY.
ISPY has the higher dividend yield at 4.47%, compared with 1.01% for SPY.
ISPY is categorized as Derivative Income, while SPY is S&P 500. ISPY tracks S&P 500 Daily Covered Call Index, while SPY tracks S&P 500 Index. They also come from different issuers: ProShares and State Street. Their fees differ too: 0.55% for ISPY and 0.09% for SPY.
SPY currently has the higher Sharpe Ratio (2.16 vs 1.97), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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